20167000166701 has 4 divisors (see below), whose sum is σ = 21353294294172. Its totient is φ = 18980706039232.

The previous prime is 20167000166659. The next prime is 20167000166741. The reversal of 20167000166701 is 10766100076102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15988594033476 + 4178406133225 = 3998574^2 + 2044115^2 .

It is a cyclic number.

It is not a de Polignac number, because 20167000166701 - 2²⁹ = 20166463295789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20167000166741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593147063710 + ... + 593147063743.

It is an arithmetic number, because the mean of its divisors is an integer number (5338323573543).

Almost surely, 2^{20167000166701} is an apocalyptic number.

It is an amenable number.

20167000166701 is a deficient number, since it is larger than the sum of its proper divisors (1186294127471).

20167000166701 is a wasteful number, since it uses less digits than its factorization.

20167000166701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186294127470.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 20167000166701 in words is "twenty trillion, one hundred sixty-seven billion, one hundred sixty-six thousand, seven hundred one".